Air register for fuel burners



E. H. PEABODY AIR REGISTER FOR FUEL BURNERS March 16 1926. 1,576,537

Filed April 19, 1923 2 Sheets-Sheet 1 INVENTOR' Ernest H. Peabody Um.36am- ATTORNEY March 16 1926. 1,576,537

E. H. PEABODY AIR REGISTER FOR FUEL BURNERS Filed April 19. 1923 2Sheets-Sheet E f INVENTOR Ernest H. Peabody wmdlfimbh ATTORNEY PatentedMar. 16', 1926.

UNITED STATES ERNEST H. PEABODY, OF PELHAM MANOR, NEW YORK.

AIR nnefs'rna' FOR FUEL Bonuses.

Application filed April 19, 1923. Serial No. 633,169.

To all whom it may concern:

Be it known that I, ERNEST H. PEAnonY, a citizen of the United States,and resident of Pelham Manor, county of Westchester, State of New York,have invented certain new and useful Improvements in Air Registers forFuel Burners; and I do hereby declare the following to be a full, clear,and exact deseription of the invention, such as will enable othersskilled in the art towhich it appertains to make and use the same.

This invention relates to a system-0r air control registers for fuelburners, preferably of the mechanical a-tomizing type which finelyatomizes the fuel entirely by pressure and produces a hollow conicalspray, and

has for its objects to produce a register that will delii'er therequired air supply uniformly and in a direction converging to the flameso that each particle of fuel will be supplied with its required amountof oxygen for complete combustion within the cone of fuel as well as onthe outside surface.

It is Well known that efficient combustion can be produced only byatomization of the oil into its finest particles. If each particle is'far enough apart from its neighbor to permit being completelysurrounded with invention will now be described in connection with theaccompanying drawings, forming part of this specification, in which Ihave represented my air register in ts pre ferred form, after, which Ishall point out more particularly in the claims those features which Ibelieve to be new and of my own invention. y

In the drawings Figure 1 is a central vertical sectional view of myregister mounted in a furnace front.

Figure 2 is a view, partly broken away, of the front plate.

Figure 3 is a view of my register partly broken away with the frontplate removed.

In the carrying out of my invention, the refractory wall 1 of anysuitable furnace is provided with a circular opening 2 into which aconical annular ring 3 is secured by any convenient means such as bolts4 tothe front plate 5. The inner end of the conical ri-n ang e with therefractory wall 1 of the furnace, which is filled in with plasticrefractory material 7.

3 is flanged as at 6 forming a right.

Coaxial with the conical member3 I provide a cylindrical member 8 havinga reduced portion or sleeve 9 adapted to hold the burner 10 providedwith tip 11, fuel supply 12 and diffuser plate 13. The

burner is adapted to slide withinythe sleeve and be held in adjustedposition by means of the thumb screw 14. Spirally arranged deflectorplates 16 hold the conical member 3 and the cylindrical member 8 inspaced relation and the latter is provided with openings 15 which arelocated between the deflector plates 16 and form a plurality of airducts which converge from the outer to inner portion having a section ofmaximum restriction near the combustion chamber substantially like theconverging nozzle used in elastic fluid turbines of the impulse type forconverting pressure into velocity.

Mounted on the sleeve 9 I provide a front plate 20 adapted to slide androtate to control the air passing into andthrough the air passages inthe register.

I provide a plurality of openings 21 in the flat face 19 of thecylindrical portion 8 and in front of these openings I provide a shutter26 operated by handle 22 suitably guided as at 23 and secured in itsadjusted I position by thumb screw 24. ,This shutter 26 is provided withopenings 27 similarly arranged with holes 21 in plate 19.

From the foregoing description it will be apparent that the air passagesbetween the conical member 3 and the cylindrical member 8 separated fromeach other by the spiral partitions 16 converge toward the combustionchamber. Each passage gradually changes in section to maximumrestriction at the combustion chamber end.

The air'of combustion in flowing through 1 a passage so proportionedwill expand adiabatically to the lesser pressure existing at the throatand issue uniformly as a continuous stream possessed of a definitevelocity in a direction convergent to the flame so that it willenetrate' the conical layer of ignited fuel owing from the burner andenter the furnace as a highly incandescent gaseous mixture. K

1. An air control re ister comprisin an atomizer adapted to deliver fuelin the s ape of a conical spray into a'combnstion chamber, afrusto-conical ring-like member adapted to fit into an opening in thefront of the combustion chambena cyhn'drical memof a conical spra bercoaxial with the frusto-conical member, a plurality of spirally arrangeddeflector plates interposed between and connecting the conical memberand the cylindrical member and adapted to direct the air into thecombustion chamber, and rotatable and slidable means for the control ofthe air through the passages between the two members.

2. An air control register comprising an atomizer adapted to deliverfuel in the shape into a combustion chamber, a frusto-comcal memberadapted to fit into an opening in the combustion chamber, a cylindricalmember in spaced relation thereto and spaced from the atomizer and aplurality of spirally arranged deflector plates interposed between andconnecting the frusto-conical and cylindrical members adapted to directthe air to the combustion chamber so that it impinges upon the cone offuel.

3. A device as recited in claim 2 with the addition of means forcontrolling the amount of air entering between the frusto-conical andcylindrical members. I

4. An air control register comprising a frusto-conical member adaptedto-fit into an opening in the furnace front, a member provided with acylindrical body portion and a reduced cylindrical sleeve adapted toreceive an atomizer, a plurality of spirally arranged deflector platesinterposed between the frusto-conical member and the cylindrical bodyportion, and rotatable and slidable means for control of the passage ofair through the openings between the deflector plates.

5. An air control register comprisin an outer frusto-conical ring-likemember a apted to'be secured to a furnace front, an inner cylindricalportion for the admission of air, and a series of spirally arrangedpartitions securing the inner portion to the outer member in spacedrelation.

6. An air register comprising an outer frusto-conical ring-like memberadapted to be secured to a furnace front, an inner cylindrical memberprovided with a reduced portion, a series of spirally arrangedpartitions securing the inner member to the outer member, and arotatable and slidable member mounted on the reduced portion of thecylindrical member for controlling the admission of air.

7. An air control register comprising an atomizer adapted to deliverfuel in the shape of a conical spray into a combustion chamber, afrusto-conical ring-like member adapted to fit into an opening inthefront of the combustion chamber, a cylindrical member coaxial withthe frusto-conical member and spaced from the atomizer, a plurality ofspirally arranged deflector plates interposed between and connecting thefrustoconical member and the cylindrical member and adapted to directthe air into the combustion chamber, and means for the control of theair through the passages between said members.

8. An air control register comprising a frusto-conical member adapted tofit into an opening in the furnace front, a member provided with acylindrical body portion and a reduced cylindrical sleeve adapted toreceive an atomizer, a plurality of spirally arranged deflector platesinterposed between the frusto-conical member and the cylindrical bodyportion, and means for control of the passage of air through theopenings between the deflector plates.

9. An air register comprising an outer frusto-conical ring-like memberadapted to be secured to a furnace front, an inner cylindrical memberprovided with a reduced portion, a series of spirally arrangedpartitions securing the inner member to the outer member, and a membermounted on the reduced portion of the cylindrical memher for.controlling the admission of air.

.10. An air control register comprising an outer frusto-conicalring-like member adapted to be secured to a furnace front, an innercylindrical portion having its outer face closed except for airopenings, fuel supply means within said cylindrical portion, spirallyarranged partitions connecting the member and the inner portion, andmeans for cont-rolling the passage of air through said openings. 11. Adevice as recited in claim 10 with the addition of means for controllingthe passage of air between the member and the inner portion.

12. An air control register comprising an outer frusto-conical ring-likemember adapted to be secured to a furnace front, an inner cylindricalmember having a closed outer end provided with openings and a reducedcylindrical sleeve to receive! an atomizer,

means for connecting the two members,

means for controlling the passage of air through said openings, andmeans slidable on the sleeve for controlling the passage of air betweenthe two members.

In testimony whereof I aflix my signature.

ERNEST PEABODY.

